tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: a1184cae56bcb96b86df3ee0377cec507a3f56e0 commit: 9d9bb71f3e115b75ec5e38f087e159a87fc0413a [12968/13337] drm/i915: Extract opregion vbt presence check config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240312/202403121924.E3xRqDsS-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 503c55e17037436dcd45ac69dea8967e67e3f5e8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240312/202403121924.E3xRqDsS-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403121924.E3xRqDsS-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/elf.h:6: In file included from arch/s390/include/asm/elf.h:173: In file included from arch/s390/include/asm/mmu_context.h:11: In file included from arch/s390/include/asm/pgalloc.h:18: In file included from include/linux/mm.h:2188: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/i915/display/intel_bios.c:34: In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h:15: In file included from drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h:11: In file included from drivers/gpu/drm/xe/xe_bo.h:11: In file included from drivers/gpu/drm/xe/xe_bo_types.h:9: In file included from include/linux/iosys-map.h:10: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from drivers/gpu/drm/i915/display/intel_bios.c:34: In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h:15: In file included from drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h:11: In file included from drivers/gpu/drm/xe/xe_bo.h:11: In file included from drivers/gpu/drm/xe/xe_bo_types.h:9: In file included from include/linux/iosys-map.h:10: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from drivers/gpu/drm/i915/display/intel_bios.c:34: In file included from drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h:15: In file included from drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h:11: In file included from drivers/gpu/drm/xe/xe_bo.h:11: In file included from drivers/gpu/drm/xe/xe_bo_types.h:9: In file included from include/linux/iosys-map.h:10: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:78: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 692 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 700 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 708 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 717 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 726 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ >> drivers/gpu/drm/i915/display/intel_bios.c:3417:10: error: call to undeclared function 'intel_opregion_vbt_present'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 3417 | return intel_opregion_vbt_present(i915); | ^ drivers/gpu/drm/i915/display/intel_bios.c:3417:10: note: did you mean 'intel_opregion_asle_present'? drivers/gpu/drm/i915/display/intel_opregion.h:91:20: note: 'intel_opregion_asle_present' declared here 91 | static inline bool intel_opregion_asle_present(struct drm_i915_private *i915) | ^ 17 warnings and 1 error generated. vim +/intel_opregion_vbt_present +3417 drivers/gpu/drm/i915/display/intel_bios.c 3374 3375 /** 3376 * intel_bios_is_lvds_present - is LVDS present in VBT 3377 * @i915: i915 device instance 3378 * @i2c_pin: i2c pin for LVDS if present 3379 * 3380 * Return true if LVDS is present. If no child devices were parsed from VBT, 3381 * assume LVDS is present. 3382 */ 3383 bool intel_bios_is_lvds_present(struct drm_i915_private *i915, u8 *i2c_pin) 3384 { 3385 const struct intel_bios_encoder_data *devdata; 3386 3387 if (list_empty(&i915->display.vbt.display_devices)) 3388 return true; 3389 3390 list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) { 3391 const struct child_device_config *child = &devdata->child; 3392 3393 /* If the device type is not LFP, continue. 3394 * We have to check both the new identifiers as well as the 3395 * old for compatibility with some BIOSes. 3396 */ 3397 if (child->device_type != DEVICE_TYPE_INT_LFP && 3398 child->device_type != DEVICE_TYPE_LFP) 3399 continue; 3400 3401 if (intel_gmbus_is_valid_pin(i915, child->i2c_pin)) 3402 *i2c_pin = child->i2c_pin; 3403 3404 /* However, we cannot trust the BIOS writers to populate 3405 * the VBT correctly. Since LVDS requires additional 3406 * information from AIM blocks, a non-zero addin offset is 3407 * a good indicator that the LVDS is actually present. 3408 */ 3409 if (child->addin_offset) 3410 return true; 3411 3412 /* But even then some BIOS writers perform some black magic 3413 * and instantiate the device without reference to any 3414 * additional data. Trust that if the VBT was written into 3415 * the OpRegion then they have validated the LVDS's existence. 3416 */ > 3417 return intel_opregion_vbt_present(i915); 3418 } 3419 3420 return false; 3421 } 3422 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
